By default, the peers associated with the records in view will be returned (assuming the System.Windows.Automation.ItemContainerPatternIdentifiers.Pattern is supported). Previously, the peers for all the records within the associated record collection would be returned but this has performance implications and so it was changed to be more consistent with the CLR 4 behavior of the ItemsControl classes. To return to the previous behavior of returning all the record peers one can set this property to false.
Note: This property will have no effect if the ProcessVisualTreeOnly is set to true.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2